Page 57 - Complete IELTS Bands 5 - 6.5

6 Complete this answer to the Writing task using We use the passive when:
verbs from the box. In some cases, more than a we don't know who or what does/did something.
one answer may be possible. b we don't need to say who or what does/did
something.
connected COflSIStS sucked turns enters
c what happens/ happened is more important than
generated installed passes produced rises
who or what does/did it.

0 page 104 The passiVe
The diagrams show a machine for generating
electricity from waves and where it can be placed.
() Rewrite each of these sentences using a verb in
The machine 1 .~0.:11s.i.sh. of two chambers, one
the passive and starting with the words given.
above the other. The process starts when a wave
2 ......... the lower chamber. As a result, the 1 They generate 20 percent of the nation's energy
using renewable energy sources.
water level inside the chamber 3 . . . . . . . . . . ..... and
Twenty percent of the nation's energy is
air is pushed up into the chamber above. As the air
4 ........ through the upper chamber, it moves ~e.1-1.e.mte.d '!ASi-11.(} re.-11.e.wC1.bte. e.-11.e.r·~~ so'!Arc.e.s.
2 !hey have closed down some nuc1ear power
a turbine which is 5 ... ................. to a generator.
plants.
When the wave goes down, air is 6 .. . ..... in
Some nuclear power plants ...
from outside and this also 7 .................... the turbine.
3 They can use the electricity for lighting homes.
The machine can be placed near the coast, and
The electricity ...
in this case it can be 8 ..... at a lower cost.
4 The government will subsidise new wind-
However, waves near the coast tend to be smaller
turbine installations.
and so less electricity is 9 ...................... Alternatively,
New wind-turbine installations ...
the machine can be placed in deeper water where
5 In the first stage of the process, they heat the air
the waves are larger and more electricity can be
which will inflate the balloon.
10 . . However, in this case, it will cost
In the first stage of the process, the air which
more to install. In general, while the machine
appears to be a simple way of harnessing renewable will inflate the balloon ...
energy, its installation may cause a number 6 In tropical countries, people tend to consume
of problems related to its cost and its location. more electricity in summer months.
In tropical countries, more electricity tends ...
8 Work in pairs. Divide the answer in Exercise 2 0 @ IELTS candidates often make mistakes when
into paragraphs. Write// where you think there they use the passive. Correct the mistake in each
should be a new paragraph. Then discuss the of these sentences.
purpose of each paragraph. 1 Children are easily influence by others, by their
environment or by their parents. t1-1.-F£1Ae.1-1.c.e.d
2 I think some problems which exist in this world
Key grammar can solve by money.
3 In my country, few schools teach students by
The passive
computer but not all subjects teach by computer.
0 The passive is formed with the verb to be + past 4 Moreover, unnecessary restrictions should
participle (opened, done, eaten, etc.). Which verb reduce by the government.
in this sentence is passive? 5 The primary reason for their disapproval is the
damage to the environment which caused by
As a result, the water level inside the chamber rises
mass tourism.
and air is pushed up into the chamber above.
6 The result of this research shows that in the UK
a great proportion of household tasks are doing
6 Underline other examples of the passive in the
by women.
sample answer in Writing Exercise 2.
7 This diagram presents the process of brick
8 Which rea~ons (a-c) apply to the example manufacturing which is used for the building
sentence in Exercise 1? You can choose more industry.
than one.

The world in our hands @